We have used special tests to investigate taste function in detail. To evaluate acuity for a salty taste, we used a paper with salt crystals, Salsave®. The procedure is simple and takes only a few minutes. We analyzed the relationships between the magnitude of the threshold of response to this test and the results of other taste function tests in 126 patients who visited our clinic. The mean magnitude of the response to Salsave significantly correlated with the results of other taste tests. Thus, this is a useful method for screening the detection and recognition threshold of a salty taste.

We studied the olfactory functions of organic mercury poisoning (Minamata disease) by using both the smell identification test and the olfactory detection threshold test (with phenyl ethyl alcohol). The subjects were 19 patients with Minamata disease who were treated in Meisuien, Minamata, Kumamoto, Japan and include cases that developed the disease in utero. The mean age was 78.7 ± 14.3 years old. Both smell identification and olfactory detection tests in the majority of patients decreased significantly compared with those of healthy elder subjects. A few cases showed normal olfactory identification and detection functions. The olfactory identification function deceased with advancing age. Correlation existed between detection threshold and backgroundfactors such as age and duration after documented Minamata disease was found. No significant relationship was identified between olfactory function and the typical symptoms of Minamata disease. (Am J Rhinology 8: 259-263, 1994)

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Sinusitis has been reported to be one of the major causative etiologies of olfactory disorder. According to our data during last 3 years, 47.5% of all cases of olfactory disorder were attributed to sinusitis. Persistent olfactory disturbance was often critical even after resection of the patho

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